title: Appendix: a model of plaque formation.
abstract: Equations describing plaque formation in soft agar have been based on certain simplifying assumptions, for which data are presented. The derived equations permit one to calculate (i) average plaque size as a function of the initial density of indicator cells (Do), (ii) the number of cells lysed per plaque as a function of Do, and (iii) the cumulative number of cells lysed at various stages of plaque development. The calculated values agree well with those determined experimentally.
mesh_terms: D001435:Bacteriophages / Q000235:genetics*; D003353:Corynebacterium diphtheriae / Q000235:genetics*; D008242:Lysogeny; D010948:Viral Plaque Assay; D014779:Virus Replication